richlattof
Member
- Location
- essex, Ma, US
Bonding question? I have a 1 KVA transformer. It is 480 delta single phase to a 120 volt secondary. It is mounted in a roof top unit to provide power to a convenience GFI outlet. The inspector called me out on not bonding it to building steel due to a transformer being a separately derived system. I know larger transformers are always bonded to building steel but this seems a little ridiculous. I have searched the code with not much luck to prove him wrong. Any help would be much appreciated. Thank you.